IJCAS

This paper addresses the issues of time delay and deception attacks in networked control systems. An event-based secure networked predictive control system (ESNPCS) architecture is proposed. The ESNPCS integrates a secure transmission protocol and an event-based networked predictive control. The secure transmission protocol guarantees the integrity, confidentiality and authenticity of transmitted data in networked control systems. The networked predictive control compensates time delay based on the control signal prediction sequence derived from the previous states, control inputs and outputs. The event-based control method alleviates the adverse influence of network congestion through the event trigger conditions. A theoretical result using the Lyapunov theory is obtained for the stability of the ESNPCS. Practical experiments are implemented to demonstrate the effectiveness of the proposed ESNPCS.

Keywords: Event-driven, networked control systems, networked predictive control, secure transmission protocol, stability, time delay.